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首页> 外文期刊>American journal of applied sciences >Cryptic Mantle Metasomatism: Evidences from Spinel Lherzolite Xenoliths/Al-Harida Volcano in Harrat Al-Shaam, Jordan | Science Publications
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Cryptic Mantle Metasomatism: Evidences from Spinel Lherzolite Xenoliths/Al-Harida Volcano in Harrat Al-Shaam, Jordan | Science Publications

机译：隐伏地幔交代作用：来自约旦哈拉特沙姆的尖晶石斜纹岩Xenoliths / Al-Harida火山的证据科学出版物

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> Problem statement: Al-Harida volcano is located in the Jordanian parts of the Harrat Al-Shaam plateau and contains considerable amounts of mantle xenoliths within its pyroclastic successions. Approach: These xenoliths are reported for the first time for this area. Mineralogical investigations show that they are composed of olivine, orthopyroxene, clinopyroxene, spinel and phlogopite. Results: The xenoliths range in size from 5-30 cm with an average of 10 cm. They are classified as Type I and belong to the Cr-diopside group and are characterized by high contents of MgO, Cr and Ni. The occurrence of hydrous mineral phases and the enrichment of incompatible elements such as Sr, Rb and Ba indicate a considerable mantle metasomatism. Conclusion/Recommendations: Thermobarometry of the studied xenoliths indicates a temperature ranging from 960-1040
机译： > 问题陈述： Al-Harida火山位于Harrat Al-Shaam高原的约旦地区，并且在其火山碎屑演替过程中含有大量的地幔异岩。 方法：首次报告了该区域的这些异种石。矿物学研究表明，它们是由橄榄石，邻苯二酚，斜铁基，尖晶石和金云母组成。 结果：异种石的大小为5-30厘米，平均10厘米。它们被归类为I型，属于Cr透辉石类，其特征是MgO，Cr和Ni含量高。含水矿物相的出现和不相容元素如Sr，Rb和Ba的富集表明地幔交代作用很大。 结论/建议：研究的异种石的热压法表明温度范围为960-1040

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